We observed a recent campaign that primarily targets financial institutions and governmental organizations in the South American region, particularly in Colombia. This blog post covers the activities we observed, the remote access tools (RATs) used, the campaign’s techniques and procedures, and its indicators of compromise (IoCs). Our findings indicate that the campaign appears to be the work of a group involved in business email compromise (BEC) or cybercrime, and unlikely to be an advanced persistent threat (APT).Read More
Multiple command-and-control (C&C) servers used by the DRIDEX botnet have been taken down by the Federal Bureau of Investigation (FBI), following the action taken by the National Crime Agency (NCA) in the UK.
US law enforcement officials obtained court orders that resulted in the seizure of multiple servers used by DRIDEX. This crippled the malware’s C&C network, which is used by the malware to send the stolen information to the cybercriminals and to download configuration files that include the list of targeted banks. Furthermore, charges have been made against Andrey Ghinkul, aka Andrei Ghincul and Smilex, the Moldovan administrator of the botnet.Read More
One of the ways that malware activity on a network is spotted is via the activity of their network activity. However, in many cases this can be difficult to detect: there have been incidents where command-and-control (C&C) servers were able to stay online and pose a problem for many years. This particular group of threat…Read More
Command-and-control (C&C) server communication is essential for botnet creators to control zombie computers (or bots). To hide this from security researchers, they often use rootkits and other “tricks”. However, hiding the network traffic – specifically from monitoring outside an infected computer – is not an easy task, but is something that the botnet creators have…Read More
Cybercriminals today create and use botnets to perpetrate their criminal activities. Whether it is to send out Blackhole Exploit Kit spam or to use as entry points into organizations, the one constant is that most bots (victim computers) communicate back and forth with command and control (C&C) servers. Trend Micro’s Global Threat Intelligence, derived from…Read More